package lesson1_2;

public class Class1 {
    //静态内部类
    public static class Class2{

    }

    //成员内部类
    public  class Class3{

    }

    void fun1(){
        //局部内部类
        class Class4{

        }
    }

    void fun2(){
        Class1 class1 = new Class1();
        Class2 class2 = new Class2();
        Class3 class3 = new Class3();

    }

    public static void main(String[] args) {

    }
}
